公开(公告)号：US20160253201A1

公开(公告)日：2016-09-01

申请号：US15148890

申请日：2016-05-06

Applicant: VMware, Inc.

Inventor： Irene Zhang ,  Kenneth Charles Barr ,  Ganesh Venkitachalam ,  Irfan Ahmad ,  Alex Garthwaite ,  Jesse Pool

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F9/461 ,  G06F9/485 ,  G06F9/5016 ,  G06F11/1438 ,  G06F12/08 ,  G06F2009/45575 ,  G06F2009/45583

Abstract: Methods and apparatus for saving and/or restoring state information for virtualized computing systems are described. An example apparatus includes a physical memory and a virtual machine monitor to: in response to a request to suspend operation of a virtual machine, place a trace on a memory page in the physical memory to detect at least one of a read access or a write access that occurs when state information of the virtual machine is saved in response to the request, the memory page associated with virtual memory hosted by the virtual machine, while the virtual machine continues to operate after the request, initiate storing of the virtual memory of the virtual machine, and in response to a trigger of the trace, store an indication that the memory page is an active memory page.

Abstract translation: 描述用于保存和/或恢复虚拟化计算系统的状态信息的方法和装置。 一种示例性装置包括：物理存储器和虚拟机监视器，用于：响应于暂停虚拟机的操作的请求，在物理存储器中的存储器页面上放置跟踪以检测读取访问或写入中的至少一个 响应于请求保存虚拟机的状态信息时发生的访问，与虚拟机托管的虚拟存储器相关联的存储器页面，同时虚拟机在请求之后继续操作，开始存储虚拟机的虚拟存储器 虚拟机，并且响应于跟踪的触发，存储指示存储器页面是活动存储器页面。